This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A098718 #18 Sep 19 2019 14:38:59 %S A098718 1,2,4,8,17,34,67,125,224,391,666,1108,1797,2887,4552,7088,10875, %T A098718 16495,24756,36766,54084,78858,114018,163558,232965,329478,462996, %U A098718 646551,897699,1239395,1702142,2325845,3162865,4281304,5769761,7742941,10348857,13778106,18275141 %N A098718 Position of n! in A025487. %F A098718 A025487(a(n)) = n!. - _Amiram Eldar_, Jun 20 2019 %e A098718 A025487(34) = 720 = 6! so a(6) = 34. - _David A. Corneth_, Sep 19 2019 %Y A098718 Cf. A000142, A025487, A098719. %K A098718 nonn %O A098718 1,2 %A A098718 _Jeff Burch_, Sep 29 2004 %E A098718 More terms from _Amiram Eldar_, Jun 20 2019 %E A098718 a(35) corrected by _Amiram Eldar_, Jul 26 2019 %E A098718 a(36)-a(39) from _David A. Corneth_, Sep 19 2019